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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef AAPT_IO_FILESYSTEM_H
#define AAPT_IO_FILESYSTEM_H
#include <map>
#include "io/File.h"
namespace aapt {
namespace io {
// A regular file from the file system. Uses mmap to open the data.
class RegularFile : public IFile {
public:
explicit RegularFile(const Source& source);
std::unique_ptr<IData> OpenAsData() override;
std::unique_ptr<io::InputStream> OpenInputStream() override;
const Source& GetSource() const override;
private:
DISALLOW_COPY_AND_ASSIGN(RegularFile);
Source source_;
};
class FileCollection;
class FileCollectionIterator : public IFileCollectionIterator {
public:
explicit FileCollectionIterator(FileCollection* collection);
bool HasNext() override;
io::IFile* Next() override;
private:
DISALLOW_COPY_AND_ASSIGN(FileCollectionIterator);
std::map<std::string, std::unique_ptr<IFile>>::const_iterator current_, end_;
};
// An IFileCollection representing the file system.
class FileCollection : public IFileCollection {
public:
FileCollection() = default;
/** Creates a file collection containing all files contained in the specified root directory. */
static std::unique_ptr<FileCollection> Create(const android::StringPiece& path,
std::string* outError);
// Adds a file located at path. Returns the IFile representation of that file.
IFile* InsertFile(const android::StringPiece& path);
IFile* FindFile(const android::StringPiece& path) override;
std::unique_ptr<IFileCollectionIterator> Iterator() override;
private:
DISALLOW_COPY_AND_ASSIGN(FileCollection);
friend class FileCollectionIterator;
std::map<std::string, std::unique_ptr<IFile>> files_;
};
} // namespace io
} // namespace aapt
#endif // AAPT_IO_FILESYSTEM_H